Table 5.

1/creatinine slopes by era

Era	Era 1: pre-CNI (1963–83), n = 114	Era 2a: CNI + steroids (1984–99), n = 262	Era 2b: steroid-free CNI (1999–2011), n = 77	P-value
First year	1.8 ± 7.5	0.02 ± 2.6	0.13 ± 0.8	0.6
Second year	0.1 ± 0.3	0.02 ± 0.3	0.02 ± 0.2	0.9
After second year	0.0004 ± 0.1	−0.04 ± 0.3	−0.03 ± 0.2	0.4